Wells Fargo customers are furious as 2nd service outage in a week means they can't use their debit cards or access accounts online

Wells Fargo customers on Thursday were unable to use their debit cards or access online banking because of a "systems issue" that caused intermittent outages, the company said.

The number of people affected is not known.

Some people tweeted concerns and complaints.

As of Thursday morning, the site appeared to be down with a banner that read "We're experiencing some technical difficulties."

This is the second Wells Fargo service outage in a week.

Wells Fargo customers were unable to use debit cards or access online banking because of a "systems issue" causing "intermittent outages," the company said on Twitter on Thursday morning.

The outage seemed to be nationwide, with customers taking to social media to express their concerns and grievances. Some said they were experiencing difficulty buying gas and getting to work, while others were unable to purchase food or pay bills.

It is unclear how many customers were affected by the outage, though a Wells Fargo representative confirmed the outage to an NBC affiliate, saying customers can reach "branch and contact center" employees for assistance.

A statement on the company's Twitter account at 9 a.m. ET told customers to check back for updates, while its website seemed to be completely offline.

"We apologize to our customers who may be experiencing an issue with our online banking and mobile app," Wells Fargo tweeted. "Thanks for your patience while we research this issue. If you are impacted, please check back here for updates."

Wells Fargo

This is the second service outage in less than a week for the bank, which had to apologize last Friday for a similar issue.

A Wells Fargo spokesperson sent Business Insider the following statement: "We're experiencing system issues due to a power shutdown at one of our facilities, initiated after smoke was detected following routine maintenance. We're working to restore services as soon as possible."